TIL you can mount an NFS share to a pod running in Kubernetes.
My use case for this is to have my Synology provide the backend storage, Kubernetes handles the containers, and Nextcloud is my frontend.*
As an added bonus, I can still use Finder in MacOS to get to my files, if I want to. No client required.
*Why not just use the Synology interface you might ask? Over time, Synology has reduced features on their platform. Version 7.2.2 of their Disk Station Manager killed off video station as well as HEVC support, for example.